diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7d3148d..431ee06 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,38 +4,51 @@ on:
   push:
     paths-ignore:
     - '**/*.md'
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.experimental }}
     strategy:
+      fail-fast: false
       matrix:
-        emacs_version:
-          - "26.3"
-          - "27.1"
-          - snapshot
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        emacs-version:
+          - 26.3
+          - 27.2
+          - 28.2
+          - 29.1
+        experimental: [false]
         include:
-        - emacs_version: snapshot
-          allow_failure: true
+        - os: ubuntu-latest
+          emacs-version: snapshot
+          experimental: true
+        - os: macos-latest
+          emacs-version: snapshot
+          experimental: true
+        - os: windows-latest
+          emacs-version: snapshot
+          experimental: true
     steps:
     - uses: actions/setup-python@v2
       with:
         python-version: '3.x'
         architecture: 'x64'
 
-    - uses: purcell/setup-emacs@master
+    - uses: jcs090218/setup-emacs@master
       with:
-        version: ${{ matrix.emacs_version }}
+        version: ${{ matrix.emacs-version }}
 
-    - uses: conao3/setup-cask@master
+    - uses: emacs-eask/setup-eask@master
       with:
         version: 'snapshot'
 
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Run make
-      uses: nick-invision/retry@v2
-      with:
-        timeout_seconds: 90
-        max_attempts: 3
-        command: 'cask && make'
+      run: 'make all'
diff --git a/.gitignore b/.gitignore
index e9d3537..ec6fd1d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,7 @@
 *.elc
 /*-autoloads.el
 /.cask
+/.eask
+/dist
 /composer.lock
 /vendor
diff --git a/Eask b/Eask
new file mode 100644
index 0000000..e9f7321
--- /dev/null
+++ b/Eask
@@ -0,0 +1,22 @@
+(package "phpstan"
+         "0.7.2"
+         "Interface to PHPStan (PHP static analyzer)")
+
+(website-url "https://github.com/emacs-php/phpstan.el")
+(keywords "tools" "php")
+
+(package-file "phpstan.el")
+(files "*.el")
+
+(script "test" "echo \"Error: no test specified\" && exit 1")
+
+(source 'gnu)
+(source 'melpa)
+
+(depends-on "emacs" "24.3")
+(depends-on "compat")
+(depends-on "php-mode")
+(depends-on "php-runtime")
+(depends-on "flycheck")
+
+(setq network-security-level 'low)  ; see https://github.com/jcs090218/setup-emacs-windows/issues/156#issuecomment-932956432
diff --git a/Makefile b/Makefile
index 40be38e..a5e34cc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,34 +1,21 @@
 EMACS ?= emacs
 CASK ?= cask
-ELS = phpstan.el flycheck-phpstan.el flymake-phpstan.el
-AUTOLOADS = phpstan-autoloads.el
-ELCS = $(ELS:.el=.elc)
+EASK ?= eask
 
-.el.elc: .cask
-	$(EMACS) -Q -batch -L . --eval \
-	"(let ((default-directory (expand-file-name \".cask\" default-directory))) \
-	   (require 'package) \
-	   (normal-top-level-add-subdirs-to-load-path))" \
-	-f package-initialize -f batch-byte-compile $<
+install:
+	$(EASK) package
+	$(EASK) install
+	$(EASK) install-deps
 
-.cask: Cask
-	$(CASK)
+compile:
+	$(EASK) compile
 
-all: clean autoloads $(ELCS)
+all: clean autoloads install compile
 
-autoloads: $(AUTOLOADS)
-
-$(AUTOLOADS): $(ELCS)
-	$(EMACS) -Q -batch -L . --eval \
-	"(progn \
-	   (require 'package) \
-	   (normal-top-level-add-subdirs-to-load-path) \
-	   (package-generate-autoloads \"phpstan\" default-directory))"
+autoloads:
+	$(EASK) generate autoloads
 
 clean:
-	-rm -f $(ELCS) $(AUTOLOADS)
-
-clobber: clean
-	-rm -f .cask
+	$(EASK) clean all
 
-.PHONY: all autoloads clean clobber
+.PHONY: all autoloads clean